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A kind of renewable concrete and its production process

A technology of recycled concrete and production process, applied in the field of concrete manufacturing, can solve the problem of easy cracking of renewable concrete, and achieve the effect of providing elastic recovery ability, high degree of bonding, and high elastic recovery rate

Active Publication Date: 2022-08-05
河南兴达商砼有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem that renewable concrete is easy to crack, the purpose of this application is to provide a renewable concrete and its production process, which has the advantage of anti-cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]The renewable concrete of this embodiment is made of the following raw materials by weight: 500 parts of recycled aggregate, 500 parts of sand, 350 parts of cement, 0.2 parts of viscose fiber, 0.15 part of polyester fiber, 0.1 part of polyurethane fiber, water-reduced 5 parts of agent, 150 parts of water; among them, viscose fiber is high wet modulus viscose fiber, high wet modulus viscose fiber denier is 120D, length is 10mm, dry strength is 3Cn / dtex, elongation at break is 11%, the degree of polymerization is 500, the length of polyester fiber is 20mm, the dry strength is 4Cn / dtex; the length of polyurethane fiber is 20mm, the denier is 20D, the elongation at break is 400%, and the mass fraction of polyurethane fiber is 0.2% Soak in sodium hydroxide solution for 10min to clean and desizing.

[0042] The production process of the renewable concrete of the present embodiment comprises the following steps:

[0043] Step 1: The viscose fiber is degraded by electron beam i...

Embodiment 2

[0048] The renewable concrete of this embodiment is made from the following raw materials by weight: 700 parts of recycled aggregate, 300 parts of sand, 400 parts of cement, 0.5 part of viscose fiber, 0.3 part of polyester fiber, 0.15 part of polyurethane fiber, water reducing 10 parts of agent, 180 parts of water; wherein, viscose fiber is high wet modulus viscose fiber, high wet modulus viscose fiber denier is 180D, length is 20mm, dry strength is 3.5Cn / dtex, elongation at break It is 13%, the degree of polymerization is 550, the length of the polyester fiber is 40mm, the dry strength is 5Cn / dtex; the length of the polyurethane fiber is 35mm, the denier is 30D, the elongation at break is 450%, and the mass fraction of the polyurethane fiber is 0.35 % sodium hydroxide solution for 10min cleaning and desizing.

[0049] The production process of the renewable concrete of the present embodiment comprises the following steps:

[0050] Step 1: The viscose fiber is degraded by ele...

Embodiment 3

[0055] The renewable concrete of this embodiment is made from the following raw materials by weight: 900 parts of recycled aggregates, 500 parts of sand, 450 parts of cement, 0.6 parts of viscose fiber, 0.5 part of polyester fiber, 0.2 part of polyurethane fiber, water reducing 8 parts of agent, 200 parts of water; wherein, viscose fiber is high wet modulus viscose fiber, high wet modulus viscose fiber denier is 180D, length is 40mm, dry strength is 3.8Cn / dtex, elongation at break is 14%, the degree of polymerization is 600, the length of the polyester fiber is 50mm, and the dry strength is 5.5Cn / dtex; the length of the polyurethane fiber is 40mm, the denier is 35D, the elongation at break is 500%, and the mass fraction of the polyurethane fiber is Soak in 0.5% sodium hydroxide solution for 10 minutes for cleaning and desizing.

[0056] The production process of the renewable concrete of the present embodiment comprises the following steps:

[0057] Step 1: The viscose fiber ...

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Abstract

The application relates to the field of concrete manufacturing technology, and specifically discloses a renewable concrete. The renewable concrete is mainly made of the following raw materials by weight: 500-1000 parts of recycled aggregate, 200-500 parts of sand, and 350-450 parts of cement , 0.2-0.8 part of viscose fiber, 0.1-0.5 part of polyester fiber, 0.1-0.3 part of polyurethane fiber, 5-20 part of water reducing agent, and 150-200 part of water. The production process of the renewable concrete of the present application includes: step 1, uniformly mixing recycled aggregate, sand, cement and water to make a slurry; step 2, mixing viscose fiber, polyester fiber, polyurethane fiber, water reducing agent with Mix the slurry in step 1 evenly. The renewable concrete has the advantages of high strength, crack resistance and bending resistance.

Description

technical field [0001] The present application relates to the field of concrete manufacturing technology, more particularly, it relates to a renewable concrete and its production process. Background technique [0002] With the continuous development of society, my country's urban construction has developed rapidly. In urban construction, concrete is widely used in the construction industry due to its high strength, high durability and low price, but urban construction also produces a large amount of waste concrete, etc. Construction waste, these huge amounts of construction waste have greatly endangered our ecological environment. In addition, the production of concrete also requires a large number of natural resources such as sand and gravel to be mined. Therefore, it is particularly important to crush waste concrete as recycled aggregate to realize the recycling of concrete. important. [0003] Due to the difference in performance between recycled aggregate and natural aggr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B16/06C04B111/34
CPCC04B28/04C04B16/0683C04B16/0675C04B16/06C04B2201/50C04B2111/343C04B18/16C04B14/068C04B2103/302
Inventor 王俊峰鲁海龙吴广胜
Owner 河南兴达商砼有限公司
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